Emmons County record. [volume] (Williamsport, D.T. [i.e. N.D.]) 1884-current, 1887-12-02
EDlSON,S LATEST,
Turning the Heat Of q Domestic Furnace
Into Light and Power.


Turning the Heat of q Domestic Furnace
Into Light and Power.
Among the most interesting of the eighty
one papers read before the learned dele
gates to the American Association for the
Advancement of Science was one by
Thomas A. Edison, read by Prof. George F.
Barker, upon novel roposition-namely:
the conversion Of heat into power directly
by means Of magnetism, and by the same
principle, the conversion of heat into cleo
tricity. OF his discovery Mr.. Edison says,
according to the New York Sun:
Since whenever magnetic field varies in
strength in the vicinity Of conductor, a
current is generated in that conductor, it
occurred to me, that by placing an iron core
in magnetic circle and varying the mag
perature, it would be possible to generate q
current in coil of wire surrounding this
core.
Acting upon this idea, Mr.. Edison placed
eight electro-magnets in circle, all their
positive poles in contact with one iron
disk, and their negative poles in contact
with another. Passing through the disks
and joining them he placed an equal num-
Der Of rolls Of thin corrugated iron, each
roll opposite the two poles respectively of
tho electromagnetic. He wound the eight
iron rolls with insulated wire. When this
simple apparatus was placed over a fur
mace so that hot air passed through the
rolls, they became straightway non-mag-
netic. Then he fitted a semicircular plate
below the lower disk to shut of the heat
from half the rolls so that they became
magnetic, and half, being hot, were nom
magnetic By revolving this semicircular
plate the rolls were first heated and then
cooled, and by this means electricity was
generated in the coils of wire surrounding
the rolls.
| Mr.. Edison thinks that this device can be
| 80 modified as to furnish electric lights for
whole house by means of the heat from
| an ordinary furnace, and he will pursue
his experiments in that direction. He calls
the machine the pyromagnetic generator.
The proposed pyromagnetic motor is thus
described: A wheel is swung on an axis
perpendicular to the plan Of permanent
| magnet. The wheel is made of tubes of
thin iron, which are heated to redness by
current OF hot air. A screen covers part
Of the tubes, cooling them by shutting the
hot air of as the wheel revolves. AS
magnet attracts cold iron more strongly
than hot iron, the cooled tubes Of the wheel
are drawn to the magnet, and so the wheel
| Is revolved.
This motor has been tried experimental
|
| ing machine of three horse power. The
output Of electrical energy will be greater,
| he thinks, than in any device now known,
| and the cost Of operation less.
| A DinIng-Cn Line to the Pacific.
The Northern Pacific Railroad, the only
| one of the transcontinental llnes running
| dining cars through to the Pacific coast,
z1l~ l,,Vz 1.:u
effect Nov. 20, 1887. The principal fea-
lures OF this new schedule are !:
First. Twelve hours quicker time from
St. Paul to Helena and Butte, Montana,
and twenty-four hours shorter time to
Portland, Ore, Tacoma, W. r., and all
express leaving St. Paul at p. m. daily.
The time Of No 2, the corresponding
train east bound, will be shortened seven
teen hours.
Second. An additional through express
train, to which will be attached Pullman
sleepers, dining cars and emigrant sleep
ers, leaving ST. Paul at a. M daily for
Helena, Butte, Mssoula, Spokane Falls,
and Eastern Washington points; this
train making the through time five hours
quicker than the former Pacific Coast ex-
press, SlVlDg tne luCenUeft FaCllC COaSL
settler fourteen hours quicker time than
heretofore.
Third. Three express trains daily from
St. Paul and Minneapolis to Moerhead.
MINI, and Fargo and jamestown, Dak,,
With through Pullman sleepers to Grand
Forks, Fergus Falls, Wahpeton, and
principal points in North Dakota.
The Northern Pacific not only offers to
the travelling public the best train service.
including its famous dining cars, Pull.
man palace drawing and sleeping
cars, emiyrant sleepers and splendid day
coaches, but from Chicago and all eastern
cities to Portland, Ore, as quick time as
by any other route, while to Butte and
Helena, Mont, it is the shortest line by
176 and 386 miles respectively, actually
saving the traveller to Butte six hours,
! and to Helena eighteen hours, as against
any other line.
The great reduction ifetime will be Of
particular interest to all classes of travel,
| especially Yellowstone Park and Pacific
Coast excursionists contemplating a re-
turn trip by the all.rail line--the Mount
Shasta route--betwesn San Francisco and
Portland, and a trip along the Columbia
river or over the famons Cascade noun.
tains via the Northern Pacific. s